268814782388 has 24 divisors (see below), whose sum is σ = 472854043200. Its totient is φ = 133714163520.

The previous prime is 268814782351. The next prime is 268814782441. The reversal of 268814782388 is 883287418862.

It is a super-2 number, since 2×268814782388² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1979288 + ... + 2110736.

It is an arithmetic number, because the mean of its divisors is an integer number (19702251800).

Almost surely, 2^268814782388 is an apocalyptic number.

It is an amenable number.

268814782388 is a deficient number, since it is larger than the sum of its proper divisors (204039260812).

268814782388 is a wasteful number, since it uses less digits than its factorization.

268814782388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134087 (or 134085 counting only the distinct ones).

The product of its digits is 66060288, while the sum is 65.

The spelling of 268814782388 in words is "two hundred sixty-eight billion, eight hundred fourteen million, seven hundred eighty-two thousand, three hundred eighty-eight".